\begin{table}[!h]
\centering
\begin{tabular}{rr}
  \hline
X1 & X2 \\ 
  \hline
0.725 & 0.605 \\ 
  0.913 & 0.788 \\ 
  0.900 & 0.852 \\ 
  0.926 & 0.880 \\ 
   \hline
\end{tabular}
\caption{Importance estimates for treatment and control group.} 
\end{table}
